Bayesian age and growth analysis of the shortfin mako shark Isurus oxyrinchus in the Western South Atlantic Ocean using a flexible model

dc.contributorUniversidade Federal do Rio Grande (FURG)
dc.contributorUniversidade Estadual Paulista (Unesp)
dc.contributorDirección Nacional de Recursos Acuáticos (DINARA)
dc.creatorDono, Florencia
dc.creatorMontealegre-Quijano, Santiago [UNESP]
dc.creatorDomingo, Andres
dc.creatorKinas, Paul G.
dc.date2015-10-21T20:53:26Z
dc.date2015-10-21T20:53:26Z
dc.date2015-01-01
dc.date.accessioned2023-09-12T06:53:00Z
dc.date.available2023-09-12T06:53:00Z
dc.identifierhttp://link.springer.com/article/10.1007%2Fs10641-014-0284-1
dc.identifierEnvironmental Biology Of Fishes. New York: Springer, v. 98, n. 2, p. 517-533, 2015.
dc.identifier0378-1909
dc.identifierhttp://hdl.handle.net/11449/129345
dc.identifier10.1007/s10641-014-0284-1
dc.identifierWOS:000347527200005
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/8778685
dc.descriptionAge and growth estimates of shortfin mako sharks Isurus oxyrinchus from the western South Atlantic Ocean were obtained through the analysis of vertebral sections of 245 specimens (126 females, 116 males and 3 with undetermined sex), ranging in size from 78 to 330 cm fork length (FL), using a flexible growth model (Schnute model) and a Bayesian approach. A significant linear relationship was found between FL and vertebral radius for sexes combined. Marginal increment analyses were inconclusive about periodicity of growth band deposition and an annual periodicity was assumed to make age estimations. Specimens were estimated to be between 0 and 28 years of age. The Schnute model provided a good description of the individual growth for both sexes up to 15 years of age. Shortfin mako growth during the first year of life was 33.9 cm (ICr95% = 19.9-40.8) for females and 30.5 cm (ICr95% = 25.6-35.4) for males. Until approximately 15 years of age, both sexes showed similar growth and reached similar to 217 cm FL. Sigmoid shaped growth curves obtained for both sexes indicated a change in the growth pattern close to 7 years of age. Inconclusive results about periodicity of growth band deposition in the study area make necessary the application of more robust validation techniques in the future. Meanwhile, a precautionary approach that assumes an annual deposition pattern in the western South Atlantic can be used for the assessment and management of stocks of this species, characterized by low fecundity and late maturity.
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionPrograma de Pós-graduação em Oceanografia Biológica, Instituto de Oceanografia, Universidade Federal do Rio Grande (FURG), Avenida Itália km 8, CEP 96201-900, Rio Grande, RS, Brazil
dc.descriptionLaboratório de Elasmobrânquios, Instituto de Oceanografia, Universidade Federal do Rio Grande (FURG), Avenida Itália km 8, CEP 96201-900, Rio Grande, RS, Brazil
dc.descriptionLaboratório de Estatística Ambiental, Instituto de Matemática, Estatística e Física (IMEF), Universidade Federal do Rio Grande (FURG), Caixa Postal 474, Avenida Itália km 8, CEP 96201-900, Rio Grande, RS, Brazil
dc.descriptionDepartamento de Recursos Pelágicos, Dirección Nacional de Recursos Acuáticos (DINARA), Constituyente 1497, CP 11200, Montevideo, Uruguay.
dc.descriptionUniversidade Estadual Paulista “Júlio de Mesquita Filho”—UNESP, Unidade de Registro, Curso de Engenharia de Pesca, Rua Nelson Brihi Badur, 430, Vila Tupy, CEP 11900-000, Registro, SP, Brazil
dc.format517-533
dc.languageeng
dc.publisherSpringer
dc.relationEnvironmental Biology Of Fishes
dc.relation1.514
dc.relation0,722
dc.rightsAcesso restrito
dc.sourceWeb of Science
dc.subjectIsurus oxyrinchus
dc.subjectAge and growth
dc.subjectSchnute growth model
dc.subjectBayesian approach
dc.titleBayesian age and growth analysis of the shortfin mako shark Isurus oxyrinchus in the Western South Atlantic Ocean using a flexible model
dc.typeArtigo


Este ítem pertenece a la siguiente institución